Accepted and recommended by major freight carriers
Scored at multiple depths for flexibility
Note the box style in the product description
Multi-Depth Bookfolds
Shippers include: Seamless molded EPS foam body with tight fitting lid and 200#/ECT-32 white corrugated carton
13 x 13 x 3 Brown Corrugated Deluxe Literature Mailers 50/Bundle Discount_5933550108762_10 Accepted and recommended by majorAll of these Indestructo corrugated mailers boxes are designed to create a professional appearance for shipment of your catalogs, literature, parts, photos, printed material, etc. Note the box style in the product description. Choose from six styles: Standard Protective Mailers, Outside Tuck Mailers, RSC Boxes, Multi Depth Bookfolds, End Loading Mailers, and Jumbo Fold Over Mailers. Most styles fold together in seconds without tape, glue or staples.